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For anyone else with this problem the following may be useful:- Bought new board £87. Spoke to heating engineer who recognised the problem and named the boiler model just from looking at the damaged pcb. Board runs hot, dries solder joints which arc and burn out. Mostly on the neutral side. He...

Potterton Puma 100e "died" yesterday - no lights or response. There was a funny hot electrical smell round the boiler. Mains fuse (3 amp) ok but internal 2 amp glass fuse blown. Checked inside and found main modultion board badly charred at the edges round the top left corner. I removed the...